C Program To Generate Permutation
#include <stdio.h>long int fact(int x){long int f = 1;int i;for (i = 1; i <= x; i++)f = f * i;return (f);}int main(){int n, r, i, p;printf("Enter value of n and r : ");scanf("%d %d", &n, &r);if (n >= r){p = fact(n) / fact(n - r);printf("Permutation P(%d , %d) = %d", n, r, p);}else{printf("Wrong Input ! Enter n>=1 .");}return 0;}
C Programming To Generate Combination | C Programming
#include <stdio.h>long int fact(int x){long int f = 1;int i;for (i = 1; i <= x; i++)f = f * i;return (f);}int main(){int n, r, i, ncr;printf("Enter value of n and r : ");scanf("%d %d", &n, &r);if (n >= r){ncr = fact(n) / (fact(r) * fact(n - r));printf("Combination C(%d , %d) = %d", n, r, ncr);}else{printf("Wrong Input ! Enter n>=1 .");}return 0;}
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